I hope this is the right forum, it is sort-of about audio. I've been wanting to build a nice headphone amp for quite some time. But, I decided to get my feet wet with a little FM transmitter kit I saw ...

Probably the biggest reason for fighting, not switching, was the weird wiring. There must be a load or draw on the voltage regulator to control its output. GM accomplishes this by wiring the No. 2 ...